<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>div_css2</title>
<style type="text/css">
.oneFixed {
	border: 1px dashed #0099CC;
	background-color: cyan;
	height: 300px;
	width: 300px
}
</style>
</head>
<body>
	<div class="oneFixed">
		1列固定宽度
	</div>
</body>
</html>
